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	ATAPI LS-120 (wfd) driver  Ver 1.1		Jan. 31, 1998

				Junichi Satoh	<junichi@astec.co.jp>
						<junichi@jp.freebsd.org>
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* Introduction

  This driver allows to use ATAPI LS-120 drive on FreeBSD2.2.5-RELEASE.

  Device name is 'wfd'.

  It allows to read/write following floppy disks:

	. 120MB
	. 1.44MB
	. 1.25MB (PC-9801 series format, FAT file system) (NOTICE)
	. 1.2MB
	. 720KB

    (NOTICE)
      'mount_msdos' doesn't support 1024Byte/sec disks. So, the 1.25MB
      floppy disks can be not mounted.  To read/write it, you need a
      software which supports 1024Byte/sec disks, extended 'mtools'
      or etc..

  It may have some problems. If you find problems, report to me.


* Installation

  1. Patch to the kernel source.

	# cd /usr/src/sys
	# patch -p < ls120-driver-980131.patch

  2. Patch to the MAKEDEV and make 'wfd' device files.

	# cd /dev
	# patch -p < MAKEDEV.patch
	# ./MAKEDEV wfd0

  3. Patch to the disktab. 
     (If you want to add the LS-120 entry to the disktab.)

	# cd /etc
	# patch -p < disktab.patch

  4. Configure the kernel configuration file.

	. Append a 'wfd' device.
		device          wfd0    #LS-120

	. To use wfd driver, you have to define following options too.
		options         ATAPI
		options         ATAPI_STATIC

  5. Configure the kernel.

  After rebooting by new kernel, you can use LS-120 drive through
  'wfd' driver.


* How to make UFS disks

  . Use entire disk space for UFS
    (partitions, wfd0a wfd0b ... wfd0h, are usable)

	# disklabel -rw wfd0 fd120m
	# newfs /dev/rwfd0a

  . Use fdisk slices (120MB floppy only)

	# fdisk -i /dev/wfd0
		... set parameters.
	# disklabel -rw wfd0 fd120m
	# newfs /dev/rwfd0s1a

  How to make UFS disks by wfd driver is the same with od driver.


* TODO

  . Support lowlevel format.


* ChangeLog

  Ver 0.1  First beta version.
  Ver 0.2  Support PC-98 format.
  Ver 0.5  Correct probing messages.
  Ver 0.6  Fix a problem, when a LS-120 drive is connected to the same
	   IDE interface with a ATAPI CD-ROM drive, the CD-ROM drive is
	   not probed.
  Ver 1.0  Support slice.
  Ver 1.1  Synchronize with the driver commited in 3.0-CURRENT.
		. Major device numbers have been changed.
			(Thanks to Paul Traina)
		. Support ATAPI Zip.
			(Thanks to Mike Smith)
		. Fix a problem, FreeBSD filesystems could be dammaged
		  by repeatedly mounting and unmounting several partitions.